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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,984,032 | 564,678 | 750,060 |
| 2006 | $9,664,596 | 607,454 | 722,271 |
| 2007 | $14,086,689 | 838,011 | 757,982 |
| 2008 | $11,127,335 | 538,271 | 1,164,953 |
| 2009 | $8,957,943 | 369,149 | 476,814 |
| 2010 | $13,486,365 | 589,368 | 733,202 |
| 2011 | $19,302,916 | 976,129 | 900,112 |
Note: Quantity represents Number of pairs
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